Thill-coupling



(N0 ModeL) A. BURGER. THILL COUPLING.

Patented June 16,1891.

WITNESSES M m @y UNITED STATES PATENT OFFICE.

ANDREAS BURGER, OF PHILADELPHIA, PENNSYLVANIA.

THlLL-COUPLING.

SPECIFICATION forming part of Letters Patent No. 454,329, dated June 16,1891.

Application filed February 16, 1891. Serial No. 381,571. (No model.)

To aZZ whom it may concern.-

Be it known that I, ANDREAS BURGER, a citizen of the United States,residing in the city and county of Philadelphia, State of Pennsylvania,have invented a new and useful Improvement in Shaft or Thill Couplings,which improvement is fully set forth in the following specification andaccompanying drawings.

My invention consists of a shaft or thill coupling formed of a slottedplate and a neck adapted to be engaged therewith, said neck beingdisconnectible by manipulating the same, so that it leaves its seat inthe plate, and may then be entirely removed from the plate.

Figure 1 represents a perspective view of a shaft or thill coupling,embodying my invention. Figs. 2 and 3 represent longitudinal sectionsthereof.

Similar letters of reference indicate corresponding parts in the severalfigures.

Referring to the drawings, A designates a plate which is secured byclips to an axle and formed with a slot or recess B.

C designates an iron or plate which is secured to the shaft or tongue Dand having a bend E intermediate of its ends, the same forming a neckwhich occupies the recess B. The walls of said recess are inclined oroblique from top to bottom rearward, so that the bottom of the frontwall forms a projection F, with which the front wall of the neck Econtacts, said wall having below its place of contact with theprojection a swell G, which is accordingly underneath the bottom of therecess. It will be noticed that the recess is of greater dimensions inthe direction from front to rear than that of the neck in the samedirection, whereby when the plate C .is in operative position a space Hexists between the rear of the neck and the wall of the rear recess,whereby the neck may have a certain play'in said recess in the directionfrom front to rear, for a purpose to be hereinafter explained. It willalso be seen that a rear portion of the plate 0 forms a tongue J, whichis beneath the plate A rearward of the recess, while the portion of saidplate 0 in front of the recess is above the plate A and forward of saidrecess.

The operation is as follows: The tongue is inserted into the recess andpushed downward and rearward therethrrmgh, so that the plate 0 islocated as in Fig. 2, the recess, owing to its dimensions, permittingthe neck and swell to pass through the same. As the neck is seated onthe projection F, it may rock thereon, due to the motions of the tongueor shaft D, and it is prevented from upward displacement, owing to theswell G, when the tongue D is raised, the tongue J also limiting thedownward motion of the tongue or'shaft D, thus preventing the rising ofthe neck in the recess, the plates thus being reliably connected.

When the parts are to be separated or uncoupled, the plate C is movedrearward, so that the neck E reaches the rear wall of the recess B, orapproximately so, whereby said plate may be raised in front. Then byproper manipulation the plate assumes the position shown in Fig. 3, theneck being in the main clear of the recess, and the tongue J issubstantially parallel with said recess, consequently said tongue may beeasily withdrawn therefrom, the plate (1 thus being entirelydisconnected from the plate A.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

1. A shaft or thill coupling consisting of a plate with an openingtherein having oblique walls, and a plate with a neck intermediate ofits ends to engage said opening, substantially as described.

2. A shaft or thill coupling consisting of a plate with an openingtherein and a plate having a portion thereof depressed and connectedwith the other portion of said plate by a neck adapted to have bearingin said opening in the first plate, substantially as described.

3. The plate A, with the recess B, having the projection F on its frontwall, and the plate C, having the neck E, which occupies said recess andis seated on said projection, said recess being adapted to permit theneck to play longitudinally therein, the plate 0 having at the rear ofthe neck a tongue which occupies a position beneath said plate A,substantially as described.

ANDREAS BURGER. Witnesses:

JOHN A. WIEDERsHEIM, GEO. W. GREGG.

